Cerebral Vasospasm after Subarachnoid Hemorrhage: Imaging with ...

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Cerebral Vasospasm -Diagnosis • Best clinical indicator • new neurologic deficits • Imaging modalities • Transcranial Doppler sonography • Unhenhanced CCT • CTA & CT perfusion • MRI & MR perfusion • Gold standard DSA • Prompt treatment can improve neurologic outcome
Vasospasm in CT Angiography • Pros – Non-invasive – Rapid data acquision – minimal sedation sufficient if necessary – High specificity (95%)* – High NPV (94%)* • Cons – Low sensitivity (75.6%) – Coil artifacts interfere with vessel evaluation – Reduced accuracy for distal ICA # & distal branches – DD hypoplasia /vasospasm can be difficult * Wintermark et al 2006 # Bighani et al 2007
Page 1 and 2: Symposium Neuroradiologicum 2010 Ma
Page 3: • Frequent complication of aneury
Page 7 and 8: • 52a patient with AcoA aneurysm
Page 9 and 10: • Vasospasm 3d after GDC embolisa
Page 11 and 12: efore after GDC embolisation • 33
Page 13 and 14: TTP CBF • 33a patient with aneury
Page 15 and 16: Day 8 Day 4 Day 3 Day 0 Day 7 Papav
Page 17 and 18: • Diagnosis of vasospasm requirin
Page 19 and 20: Wintermark et al 2006
Page 21 and 22: Dankbaar et al, Neuroradiology 2009
Page 23: Conclusion • Combined CTA & PCT r

Cerebral Vasospasm after Subarachnoid Hemorrhage: Imaging with ...

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